package cmpp;

import io.netty.bootstrap.ServerBootstrap;

import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.handler.timeout.IdleStateHandler;

import java.util.concurrent.TimeUnit;

import org.apache.log4j.Logger;

/**
 * Discards any incoming data.
 */
public class CmppServer {
	 static protected Logger logger = Logger.getLogger(CmppServer.class.getName());
    private int port = 7899;
    public final static int allIdleTime = 120;  // seconds
    public CmppServer(int port) {
        this.port = port;
    }
    
    public void run() {
        EventLoopGroup bossGroup = new NioEventLoopGroup(); // (1)
        EventLoopGroup workerGroup = new NioEventLoopGroup();
        try {
            ServerBootstrap b = new ServerBootstrap(); // (2)
            b.group(bossGroup, workerGroup)
                    .channel(NioServerSocketChannel.class) // (3)
                    .childHandler(new ChannelInitializer<SocketChannel>() { // (4)
                        @Override
                        public void initChannel(SocketChannel ch) throws Exception {
                            ch.pipeline().addLast(new IdleStateHandler(60, 60, allIdleTime, TimeUnit.SECONDS));
                            ch.pipeline().addLast(new CmppDecoder());
                            ch.pipeline().addLast(new CmppServerHandler());
                            ch.pipeline().addFirst(new CmppEncoder());
                        }
                    })
                    .option(ChannelOption.SO_BACKLOG, 128)          // (5)
                    .childOption(ChannelOption.SO_KEEPALIVE, true); // (6)

            ChannelFuture f = null;
			try {
				f = b.bind(port).sync();
				if(f.isSuccess()){
					logger.info("CMPPservice 启动成功。正在监听中...");
				}
			} catch (InterruptedException e) {
				e.printStackTrace();
			} // (7)

            try {
				f.channel().closeFuture().sync();
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
        } finally {
            workerGroup.shutdownGracefully();
            bossGroup.shutdownGracefully();
        }
    }

	public static void main(String[] args) throws Exception {
		int port;
		if (args.length > 0) {
			port = Integer.parseInt(args[0]);
		} else {
			port = 7899;
		}
		new CmppServer(port).run();
	}
}